(3 Pcs) 1/2 Inch Automatic Radiator Bleed Valve, Brass Automatic Cut-Off Air Vent Air Drain Valve

Enough to use: You will receive 6 pieces of automatic radiator air vent, enough to be used and replaced, which can save you time and effort, ideal for a house with many radiators, and to install radiators with 1/2 inch (15 mm) air plugs; Manual bleeding is also possible.

Long-term use: The radiator bleed valve is mainly made of brass, sturdy and reliable, firm and solid, not easy to break, deform or rust. The seals are made of silicone, making it easy to use for a long time.

Temperature and pressure range: The maximum operating temperature of our self-bleeding radiator valve is 100 degrees Celsius, and the maximum operating pressure is 10 bar. Adopting an automatic non-return function, you can replace the valve core during operation, which is convenient and practical.

Self-sealing design: The automatic radiator air valve is designed with a self-sealing O-ring thread. The automatic venting works using source discs. When they come into contact with water, they seal the spring discs. When they come into contact with air, they open and allow air to escape. Please note that this valve is only suitable for heating water without additives. Automatic venting: The radiator bleed valve can automatically vent through the source disc, or can be quickly manually vented. Using a self-sealing thread and an integrated automatic elastic return design, air only escapes when dry, stopping upon contact with water. Suitable for water distribution systems such as radiators, boilers, underfloor heating distributors, etc.